commits
tags
//-----------------------------------------------------------------------------
//
// Copyright 1993-1996 id Software
// Copyright 1999-2016 Randy Heit
// Copyright 2006-2016 Christoph Oelckers
// Copyright 2016 Magnus Norddahl
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// BSP traversal, handling of LineSegs for rendering.
//
//-----------------------------------------------------------------------------
#include <stdlib.h>
#include "doomdef.h"
#include "m_bbox.h"
#include "engineerrors.h"
#include "p_lnspec.h"
#include "p_setup.h"
#include "texturemanager.h"
#include "swrenderer/drawers/r_draw.h"
#include "swrenderer/plane/r_visibleplane.h"
#include "swrenderer/plane/r_visibleplanelist.h"
#include "swrenderer/things/r_sprite.h"
#include "swrenderer/things/r_wallsprite.h"
#include "swrenderer/things/r_voxel.h"
#include "swrenderer/things/r_particle.h"
#include "swrenderer/things/r_model.h"
#include "swrenderer/segments/r_clipsegment.h"
#include "swrenderer/line/r_wallsetup.h"
#include "swrenderer/line/r_farclip_line.h"
#include "swrenderer/scene/r_scene.h"
#include "swrenderer/scene/r_light.h"
#include "swrenderer/viewport/r_viewport.h"
#include "swrenderer/r_renderthread.h"
#include "r_3dfloors.h"
#include "r_portal.h"
#include "a_sharedglobal.h"
#include "g_level.h"
#include "p_effect.h"
#include "c_console.h"
#include "p_maputl.h"
// State.
#include "doomstat.h"
#include "r_state.h"
#include "r_opaque_pass.h"
#include "v_palette.h"
#include "r_sky.h"
#include "po_man.h"
#include "r_data/colormaps.h"
#include "g_levellocals.h"
EXTERN_CVAR(Bool, r_fullbrightignoresectorcolor);
EXTERN_CVAR(Bool, r_drawvoxels);
EXTERN_CVAR(Bool, r_debug_disable_vis_filter);
extern uint32_t r_renderercaps;
double model_distance_cull = 1e16;
EXTERN_CVAR(Float, r_actorspriteshadowdist)
namespace
{
double sprite_distance_cull = 1e16;
double line_distance_cull = 1e16;
}
CUSTOM_CVAR(Float, r_sprite_distance_cull, 4000.f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
if (r_sprite_distance_cull > 0.0)
{
sprite_distance_cull = r_sprite_distance_cull * r_sprite_distance_cull;
}
else
{
sprite_distance_cull = 1e16;
}
}
CUSTOM_CVAR(Float, r_line_distance_cull, 8000.f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
if (r_line_distance_cull > 0.0)
{
line_distance_cull = r_line_distance_cull * r_line_distance_cull;
}
else
{
line_distance_cull = 1e16;
}
}
CUSTOM_CVAR(Float, r_model_distance_cull, 1024.f, 0/*CVAR_ARCHIVE | CVAR_GLOBALCONFIG*/) // Experimental for the moment until a good default is chosen
{
if (r_model_distance_cull > 0.0)
{
model_distance_cull = r_model_distance_cull * r_model_distance_cull;
}
else
{
model_distance_cull = 1e16;
}
}
namespace swrenderer
{
RenderOpaquePass::RenderOpaquePass(RenderThread *thread) : renderline(thread)
{
Thread = thread;
}
sector_t *RenderOpaquePass::FakeFlat(sector_t *sec, sector_t *tempsec, int *floorlightlevel, int *ceilinglightlevel, seg_t *backline, int backx1, int backx2, double frontcz1, double frontcz2)
{
// If player's view height is underneath fake floor, lower the
// drawn ceiling to be just under the floor height, and replace
// the drawn floor and ceiling textures, and light level, with
// the control sector's.
//
// Similar for ceiling, only reflected.
// [RH] allow per-plane lighting
if (floorlightlevel != nullptr)
{
*floorlightlevel = sec->GetFloorLight();
}
if (ceilinglightlevel != nullptr)
{
*ceilinglightlevel = sec->GetCeilingLight();
}
FakeSide = WaterFakeSide::Center;
const sector_t *s = sec->GetHeightSec();
if (s != nullptr)
{
sector_t *heightsec = Thread->Viewport->viewpoint.sector->heightsec;
bool underwater = r_fakingunderwater ||
(heightsec && heightsec->floorplane.PointOnSide(Thread->Viewport->viewpoint.Pos) <= 0);
bool doorunderwater = false;
int diffTex = (s->MoreFlags & SECMF_CLIPFAKEPLANES);
// Replace sector being drawn with a copy to be hacked
*tempsec = *sec;
// Replace floor and ceiling height with control sector's heights.
if (diffTex)
{
if (s->floorplane.CopyPlaneIfValid(&tempsec->floorplane, &sec->ceilingplane))
{
tempsec->SetTexture(sector_t::floor, s->GetTexture(sector_t::floor), false);
}
else if (s->MoreFlags & SECMF_FAKEFLOORONLY)
{
if (underwater)
{
tempsec->Colormap = s->Colormap;
if (!(s->MoreFlags & SECMF_NOFAKELIGHT))
{
tempsec->lightlevel = s->lightlevel;
if (floorlightlevel != nullptr)
{
*floorlightlevel = s->GetFloorLight();
}
if (ceilinglightlevel != nullptr)
{
*ceilinglightlevel = s->GetCeilingLight();
}
}
FakeSide = WaterFakeSide::BelowFloor;
return tempsec;
}
return sec;
}
}
else
{
tempsec->floorplane = s->floorplane;
}
if (!(s->MoreFlags & SECMF_FAKEFLOORONLY))
{
if (diffTex)
{
if (s->ceilingplane.CopyPlaneIfValid(&tempsec->ceilingplane, &sec->floorplane))
{
tempsec->SetTexture(sector_t::ceiling, s->GetTexture(sector_t::ceiling), false);
}
}
else
{
tempsec->ceilingplane = s->ceilingplane;
}
}
double refceilz = s->ceilingplane.ZatPoint(Thread->Viewport->viewpoint.Pos);
double orgceilz = sec->ceilingplane.ZatPoint(Thread->Viewport->viewpoint.Pos);
#if 1
// [RH] Allow viewing underwater areas through doors/windows that
// are underwater but not in a water sector themselves.
// Only works if you cannot see the top surface of any deep water
// sectors at the same time.
if (backline && !r_fakingunderwater && backline->frontsector->heightsec == nullptr)
{
if (frontcz1 <= s->floorplane.ZatPoint(backline->v1) &&
frontcz2 <= s->floorplane.ZatPoint(backline->v2))
{
// Check that the window is actually visible
for (int z = backx1; z < backx2; ++z)
{
if (floorclip[z] > ceilingclip[z])
{
doorunderwater = true;
r_fakingunderwater = true;
break;
}
}
}
}
#endif
if (underwater || doorunderwater)
{
tempsec->floorplane = sec->floorplane;
tempsec->ceilingplane = s->floorplane;
tempsec->ceilingplane.FlipVert();
tempsec->ceilingplane.ChangeHeight(-1 / 65536.);
tempsec->Colormap = s->Colormap;
}
// killough 11/98: prevent sudden light changes from non-water sectors:
if ((underwater && !backline) || doorunderwater)
{ // head-below-floor hack
tempsec->SetTexture(sector_t::floor, diffTex ? sec->GetTexture(sector_t::floor) : s->GetTexture(sector_t::floor), false);
tempsec->planes[sector_t::floor].xform = s->planes[sector_t::floor].xform;
tempsec->ceilingplane = s->floorplane;
tempsec->ceilingplane.FlipVert();
tempsec->ceilingplane.ChangeHeight(-1 / 65536.);
if (s->GetTexture(sector_t::ceiling) == skyflatnum)
{
tempsec->floorplane = tempsec->ceilingplane;
tempsec->floorplane.FlipVert();
tempsec->floorplane.ChangeHeight(+1 / 65536.);
tempsec->SetTexture(sector_t::ceiling, tempsec->GetTexture(sector_t::floor), false);
tempsec->planes[sector_t::ceiling].xform = tempsec->planes[sector_t::floor].xform;
}
else
{
tempsec->SetTexture(sector_t::ceiling, diffTex ? s->GetTexture(sector_t::floor) : s->GetTexture(sector_t::ceiling), false);
tempsec->planes[sector_t::ceiling].xform = s->planes[sector_t::ceiling].xform;
}
if (!(s->MoreFlags & SECMF_NOFAKELIGHT))
{
tempsec->lightlevel = s->lightlevel;
if (floorlightlevel != nullptr)
{
*floorlightlevel = s->GetFloorLight();
}
if (ceilinglightlevel != nullptr)
{
*ceilinglightlevel = s->GetCeilingLight();
}
}
FakeSide = WaterFakeSide::BelowFloor;
}
else if (heightsec && heightsec->ceilingplane.PointOnSide(Thread->Viewport->viewpoint.Pos) <= 0 &&
orgceilz > refceilz && !(s->MoreFlags & SECMF_FAKEFLOORONLY))
{ // Above-ceiling hack
tempsec->ceilingplane = s->ceilingplane;
tempsec->floorplane = s->ceilingplane;
tempsec->floorplane.FlipVert();
tempsec->floorplane.ChangeHeight(+1 / 65536.);
tempsec->Colormap = s->Colormap;
tempsec->SetTexture(sector_t::ceiling, diffTex ? sec->GetTexture(sector_t::ceiling) : s->GetTexture(sector_t::ceiling), false);
tempsec->SetTexture(sector_t::floor, s->GetTexture(sector_t::ceiling), false);
tempsec->planes[sector_t::ceiling].xform = tempsec->planes[sector_t::floor].xform = s->planes[sector_t::ceiling].xform;
if (s->GetTexture(sector_t::floor) != skyflatnum)
{
tempsec->ceilingplane = sec->ceilingplane;
tempsec->SetTexture(sector_t::floor, s->GetTexture(sector_t::floor), false);
tempsec->planes[sector_t::floor].xform = s->planes[sector_t::floor].xform;
}
if (!(s->MoreFlags & SECMF_NOFAKELIGHT))
{
tempsec->lightlevel = s->lightlevel;
if (floorlightlevel != nullptr)
{
*floorlightlevel = s->GetFloorLight();
}
if (ceilinglightlevel != nullptr)
{
*ceilinglightlevel = s->GetCeilingLight();
}
}
FakeSide = WaterFakeSide::AboveCeiling;
}
sec = tempsec; // Use other sector
}
return sec;
}
// Checks BSP node/subtree bounding box.
// Returns true if some part of the bbox might be visible.
bool RenderOpaquePass::CheckBBox(float *bspcoord)
{
static const int checkcoord[12][4] =
{
{ 3,0,2,1 },
{ 3,0,2,0 },
{ 3,1,2,0 },
{ 0 },
{ 2,0,2,1 },
{ 0,0,0,0 },
{ 3,1,3,0 },
{ 0 },
{ 2,0,3,1 },
{ 2,1,3,1 },
{ 2,1,3,0 }
};
int boxx;
int boxy;
int boxpos;
double x1, y1, x2, y2;
double rx1, ry1, rx2, ry2;
int sx1, sx2;
// Find the corners of the box
// that define the edges from current viewpoint.
if (Thread->Viewport->viewpoint.Pos.X <= bspcoord[BOXLEFT])
boxx = 0;
else if (Thread->Viewport->viewpoint.Pos.X < bspcoord[BOXRIGHT])
boxx = 1;
else
boxx = 2;
if (Thread->Viewport->viewpoint.Pos.Y >= bspcoord[BOXTOP])
boxy = 0;
else if (Thread->Viewport->viewpoint.Pos.Y > bspcoord[BOXBOTTOM])
boxy = 1;
else
boxy = 2;
boxpos = (boxy << 2) + boxx;
if (boxpos == 5)
return true;
x1 = bspcoord[checkcoord[boxpos][0]] - Thread->Viewport->viewpoint.Pos.X;
y1 = bspcoord[checkcoord[boxpos][1]] - Thread->Viewport->viewpoint.Pos.Y;
x2 = bspcoord[checkcoord[boxpos][2]] - Thread->Viewport->viewpoint.Pos.X;
y2 = bspcoord[checkcoord[boxpos][3]] - Thread->Viewport->viewpoint.Pos.Y;
// check clip list for an open space
// Sitting on a line?
if (y1 * (x1 - x2) + x1 * (y2 - y1) >= -EQUAL_EPSILON)
return true;
rx1 = x1 * Thread->Viewport->viewpoint.Sin - y1 * Thread->Viewport->viewpoint.Cos;
rx2 = x2 * Thread->Viewport->viewpoint.Sin - y2 * Thread->Viewport->viewpoint.Cos;
ry1 = x1 * Thread->Viewport->viewpoint.TanCos + y1 * Thread->Viewport->viewpoint.TanSin;
ry2 = x2 * Thread->Viewport->viewpoint.TanCos + y2 * Thread->Viewport->viewpoint.TanSin;
if (Thread->Portal->MirrorFlags & RF_XFLIP)
{
double t = -rx1;
rx1 = -rx2;
rx2 = t;
std::swap(ry1, ry2);
}
auto viewport = Thread->Viewport.get();
if (rx1 >= -ry1)
{
if (rx1 > ry1) return false; // left edge is off the right side
if (ry1 == 0) return false;
sx1 = xs_RoundToInt(viewport->CenterX + rx1 * viewport->CenterX / ry1);
}
else
{
if (rx2 < -ry2) return false; // wall is off the left side
if (rx1 - rx2 - ry2 + ry1 == 0) return false; // wall does not intersect view volume
sx1 = 0;
}
if (rx2 <= ry2)
{
if (rx2 < -ry2) return false; // right edge is off the left side
if (ry2 == 0) return false;
sx2 = xs_RoundToInt(viewport->CenterX + rx2 * viewport->CenterX / ry2);
}
else
{
if (rx1 > ry1) return false; // wall is off the right side
if (ry2 - ry1 - rx2 + rx1 == 0) return false; // wall does not intersect view volume
sx2 = viewwidth;
}
// Find the first clippost that touches the source post
// (adjacent pixels are touching).
return Thread->ClipSegments->IsVisible(sx1, sx2);
}
void RenderOpaquePass::AddPolyobjs(subsector_t *sub)
{
Thread->PreparePolyObject(sub);
if (sub->BSP->Nodes.Size() == 0)
{
RenderSubsector(&sub->BSP->Subsectors[0]);
}
else
{
RenderBSPNode(&sub->BSP->Nodes.Last());
}
}
// kg3D - add fake segs, never rendered
void RenderOpaquePass::FakeDrawLoop(subsector_t *sub, sector_t *frontsector, VisiblePlane *floorplane, VisiblePlane *ceilingplane, Fake3DOpaque opaque3dfloor)
{
int count;
seg_t* line;
count = sub->numlines;
line = sub->firstline;
while (count--)
{
if ((line->sidedef) && !(line->sidedef->Flags & WALLF_POLYOBJ))
{
renderline.Render(line, InSubsector, frontsector, nullptr, floorplane, ceilingplane, opaque3dfloor);
}
line++;
}
}
void RenderOpaquePass::RenderSubsector(subsector_t *sub)
{
// Determine floor/ceiling planes.
// Add sprites of things in sector.
// Draw one or more line segments.
bool outersubsector;
if (InSubsector != nullptr)
{ // InSubsector is not nullptr. This means we are rendering from a mini-BSP.
outersubsector = false;
}
else
{
outersubsector = true;
InSubsector = sub;
// Mark the visual sorting depth of this subsector
uint32_t subsectorDepth = (uint32_t)PvsSubsectors.size();
SubsectorDepths[sub->Index()] = subsectorDepth;
PvsSubsectors.push_back(sub->Index());
}
auto Level = sub->sector->Level;
#ifdef RANGECHECK
if (outersubsector && (unsigned)sub->Index() >= Level->subsectors.Size())
I_Error("RenderSubsector: ss %i with numss = %u", sub->Index(), Level->subsectors.Size());
#endif
if (sub->polys)
{ // Render the polyobjs in the subsector first
AddPolyobjs(sub);
if (outersubsector)
{
InSubsector = nullptr;
}
return;
}
sub->sector->MoreFlags |= SECMF_DRAWN;
// killough 3/8/98, 4/4/98: Deep water / fake ceiling effect
sector_t tempsec;
int floorlightlevel, ceilinglightlevel;
sector_t *frontsector = FakeFlat(sub->sector, &tempsec, &floorlightlevel, &ceilinglightlevel, nullptr, 0, 0, 0, 0);
// [RH] set foggy flag
bool foggy = Level->fadeto || frontsector->Colormap.FadeColor || (Level->flags & LEVEL_HASFADETABLE);
// kg3D - fake lights
CameraLight *cameraLight = CameraLight::Instance();
FDynamicColormap *basecolormap;
int adjusted_ceilinglightlevel = ceilinglightlevel;
if (cameraLight->FixedLightLevel() < 0 && frontsector->e && frontsector->e->XFloor.lightlist.Size())
{
lightlist_t *light = P_GetPlaneLight(frontsector, &frontsector->ceilingplane, false);
basecolormap = GetColorTable(light->extra_colormap, frontsector->SpecialColors[sector_t::ceiling]);
// If this is the real ceiling, don't discard plane lighting R_FakeFlat()
// accounted for.
if (light->p_lightlevel != &frontsector->lightlevel)
{
adjusted_ceilinglightlevel = *light->p_lightlevel;
}
}
else
{
basecolormap = (r_fullbrightignoresectorcolor && cameraLight->FixedLightLevel() >= 0) ? &FullNormalLight : GetColorTable(frontsector->Colormap, frontsector->SpecialColors[sector_t::ceiling]);
}
FSectorPortal *portal = frontsector->ValidatePortal(sector_t::ceiling);
VisiblePlane *ceilingplane = nullptr;
if (frontsector->ceilingplane.PointOnSide(Thread->Viewport->viewpoint.Pos) > 0 ||
frontsector->GetTexture(sector_t::ceiling) == skyflatnum ||
portal ||
(frontsector->GetHeightSec() && frontsector->heightsec->GetTexture(sector_t::floor) == skyflatnum))
{
ceilingplane = Thread->PlaneList->FindPlane(
frontsector->ceilingplane,
frontsector->GetTexture(sector_t::ceiling),
adjusted_ceilinglightlevel, foggy,
frontsector->GetAlpha(sector_t::ceiling),
!!(frontsector->GetFlags(sector_t::ceiling) & PLANEF_ADDITIVE),
frontsector->planes[sector_t::ceiling].xform,
frontsector->skytransfer,
portal,
basecolormap,
Fake3DOpaque::Normal,
0);
ceilingplane->AddLights(Thread, sub->section->lighthead);
}
int adjusted_floorlightlevel = floorlightlevel;
if (cameraLight->FixedLightLevel() < 0 && frontsector->e && frontsector->e->XFloor.lightlist.Size())
{
lightlist_t *light = P_GetPlaneLight(frontsector, &frontsector->floorplane, false);
basecolormap = GetColorTable(light->extra_colormap, frontsector->SpecialColors[sector_t::floor]);
// If this is the real floor, don't discard plane lighting R_FakeFlat()
// accounted for.
if (light->p_lightlevel != &frontsector->lightlevel)
{
adjusted_floorlightlevel = *light->p_lightlevel;
}
}
else
{
basecolormap = (r_fullbrightignoresectorcolor && cameraLight->FixedLightLevel() >= 0) ? &FullNormalLight : GetColorTable(frontsector->Colormap, frontsector->SpecialColors[sector_t::floor]);
}
portal = frontsector->ValidatePortal(sector_t::floor);
VisiblePlane *floorplane = nullptr;
if (frontsector->floorplane.PointOnSide(Thread->Viewport->viewpoint.Pos) > 0 ||
frontsector->GetTexture(sector_t::floor) == skyflatnum ||
portal ||
(frontsector->GetHeightSec() && frontsector->heightsec->GetTexture(sector_t::ceiling) == skyflatnum))
{
floorplane = Thread->PlaneList->FindPlane(frontsector->floorplane,
frontsector->GetTexture(sector_t::floor),
adjusted_floorlightlevel, foggy,
frontsector->GetAlpha(sector_t::floor),
!!(frontsector->GetFlags(sector_t::floor) & PLANEF_ADDITIVE),
frontsector->planes[sector_t::floor].xform,
frontsector->skytransfer,
portal,
basecolormap,
Fake3DOpaque::Normal,
0);
floorplane->AddLights(Thread, sub->section->lighthead);
}
Add3DFloorPlanes(sub, frontsector, basecolormap, foggy, adjusted_ceilinglightlevel, adjusted_floorlightlevel);
auto nc = !!(frontsector->Level->flags3 & LEVEL3_NOCOLOREDSPRITELIGHTING);
AddSprites(sub->sector, frontsector->GetTexture(sector_t::ceiling) == skyflatnum ? ceilinglightlevel : floorlightlevel, FakeSide, foggy, GetSpriteColorTable(frontsector->Colormap, frontsector->SpecialColors[sector_t::sprites], nc));
// [RH] Add particles
if ((unsigned int)(sub->Index()) < Level->subsectors.Size())
{ // Only do it for the main BSP.
int lightlevel = (floorlightlevel + ceilinglightlevel) / 2;
for (int i = frontsector->Level->ParticlesInSubsec[sub->Index()]; i != NO_PARTICLE; i = frontsector->Level->Particles[i].snext)
{
RenderParticle::Project(Thread, &frontsector->Level->Particles[i], sub->sector, lightlevel, FakeSide, foggy);
}
}
DVector2 viewpointPos = Thread->Viewport->viewpoint.Pos.XY();
seg_t *line = sub->firstline;
int count = sub->numlines;
while (count--)
{
double dist1 = (line->v1->fPos() - viewpointPos).LengthSquared();
double dist2 = (line->v2->fPos() - viewpointPos).LengthSquared();
if (dist1 > line_distance_cull && dist2 > line_distance_cull)
{
FarClipLine farclip(Thread);
farclip.Render(line, InSubsector, floorplane, ceilingplane, Fake3DOpaque::Normal);
}
else if (!outersubsector || line->sidedef == nullptr || !(line->sidedef->Flags & WALLF_POLYOBJ))
{
Add3DFloorLine(line, frontsector);
renderline.Render(line, InSubsector, frontsector, nullptr, floorplane, ceilingplane, Fake3DOpaque::Normal); // now real
}
line++;
}
if (outersubsector)
{
InSubsector = nullptr;
}
}
void RenderOpaquePass::Add3DFloorLine(seg_t *line, sector_t *frontsector)
{
// kg3D - fake planes bounding calculation
if (r_3dfloors && line->backsector && frontsector->e && line->backsector->e->XFloor.ffloors.Size())
{
Clip3DFloors *clip3d = Thread->Clip3D.get();
for (unsigned int i = 0; i < line->backsector->e->XFloor.ffloors.Size(); i++)
{
clip3d->SetFakeFloor(line->backsector->e->XFloor.ffloors[i]);
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_EXISTS)) continue;
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_RENDERPLANES)) continue;
if (!clip3d->fakeFloor->fakeFloor->model) continue;
Fake3DOpaque opaque3dfloor = Fake3DOpaque::FakeBack;
sector_t tempsec = *clip3d->fakeFloor->fakeFloor->model;
tempsec.floorplane = *clip3d->fakeFloor->fakeFloor->top.plane;
tempsec.ceilingplane = *clip3d->fakeFloor->fakeFloor->bottom.plane;
if (clip3d->fakeFloor->validcount != validcount)
{
clip3d->fakeFloor->validcount = validcount;
clip3d->NewClip();
}
renderline.Render(line, InSubsector, frontsector, &tempsec, nullptr, nullptr, opaque3dfloor); // fake
}
clip3d->fakeFloor = nullptr;
}
}
void RenderOpaquePass::Add3DFloorPlanes(subsector_t *sub, sector_t *frontsector, FDynamicColormap *basecolormap, bool foggy, int ceilinglightlevel, int floorlightlevel)
{
// kg3D - fake planes rendering
if (r_3dfloors && frontsector->e && frontsector->e->XFloor.ffloors.Size())
{
CameraLight *cameraLight = CameraLight::Instance();
Clip3DFloors *clip3d = Thread->Clip3D.get();
// first check all floors
for (int i = 0; i < (int)frontsector->e->XFloor.ffloors.Size(); i++)
{
clip3d->SetFakeFloor(frontsector->e->XFloor.ffloors[i]);
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_EXISTS)) continue;
if (!clip3d->fakeFloor->fakeFloor->model) continue;
if (clip3d->fakeFloor->fakeFloor->bottom.plane->isSlope()) continue;
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_NOSHADE) || (clip3d->fakeFloor->fakeFloor->flags & (FF_RENDERPLANES | FF_RENDERSIDES)))
{
clip3d->AddHeight(clip3d->fakeFloor->fakeFloor->top.plane, frontsector);
}
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_RENDERPLANES)) continue;
if (clip3d->fakeFloor->fakeFloor->alpha == 0) continue;
if (clip3d->fakeFloor->fakeFloor->flags & FF_THISINSIDE && clip3d->fakeFloor->fakeFloor->flags & FF_INVERTSECTOR) continue;
fixed_t fakeAlpha = min<fixed_t>(Scale(clip3d->fakeFloor->fakeFloor->alpha, OPAQUE, 255), OPAQUE);
if (clip3d->fakeFloor->validcount != validcount)
{
clip3d->fakeFloor->validcount = validcount;
clip3d->NewClip();
}
double fakeHeight = clip3d->fakeFloor->fakeFloor->top.plane->ZatPoint(frontsector->centerspot);
if (fakeHeight < Thread->Viewport->viewpoint.Pos.Z &&
fakeHeight > frontsector->floorplane.ZatPoint(frontsector->centerspot))
{
sector_t tempsec = *clip3d->fakeFloor->fakeFloor->model;
tempsec.floorplane = *clip3d->fakeFloor->fakeFloor->top.plane;
tempsec.ceilingplane = *clip3d->fakeFloor->fakeFloor->bottom.plane;
int position;
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_THISINSIDE) && !(clip3d->fakeFloor->fakeFloor->flags & FF_INVERTSECTOR))
{
tempsec.SetTexture(sector_t::floor, tempsec.GetTexture(sector_t::ceiling));
position = sector_t::ceiling;
}
else
{
position = sector_t::floor;
}
if (cameraLight->FixedLightLevel() < 0 && sub->sector->e->XFloor.lightlist.Size())
{
lightlist_t *light = P_GetPlaneLight(sub->sector, &tempsec.floorplane, false);
basecolormap = GetColorTable(light->extra_colormap);
floorlightlevel = *light->p_lightlevel;
}
VisiblePlane *floorplane3d = Thread->PlaneList->FindPlane(
tempsec.floorplane,
tempsec.GetTexture(sector_t::floor),
floorlightlevel, foggy,
tempsec.GetAlpha(sector_t::floor),
!!(clip3d->fakeFloor->fakeFloor->flags & FF_ADDITIVETRANS),
tempsec.planes[position].xform,
tempsec.skytransfer,
nullptr,
basecolormap,
Fake3DOpaque::FakeFloor,
fakeAlpha);
floorplane3d->AddLights(Thread, sub->section->lighthead);
FakeDrawLoop(sub, &tempsec, floorplane3d, nullptr, Fake3DOpaque::FakeFloor);
}
}
// and now ceilings
for (unsigned int i = 0; i < frontsector->e->XFloor.ffloors.Size(); i++)
{
clip3d->SetFakeFloor(frontsector->e->XFloor.ffloors[i]);
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_EXISTS)) continue;
if (!clip3d->fakeFloor->fakeFloor->model) continue;
if (clip3d->fakeFloor->fakeFloor->top.plane->isSlope()) continue;
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_NOSHADE) || (clip3d->fakeFloor->fakeFloor->flags & (FF_RENDERPLANES | FF_RENDERSIDES)))
{
clip3d->AddHeight(clip3d->fakeFloor->fakeFloor->bottom.plane, frontsector);
}
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_RENDERPLANES)) continue;
if (clip3d->fakeFloor->fakeFloor->alpha == 0) continue;
if (!(clip3d->fakeFloor->fakeFloor->flags & FF_THISINSIDE) && (clip3d->fakeFloor->fakeFloor->flags & (FF_SWIMMABLE | FF_INVERTSECTOR)) == (FF_SWIMMABLE | FF_INVERTSECTOR)) continue;
fixed_t fakeAlpha = min<fixed_t>(Scale(clip3d->fakeFloor->fakeFloor->alpha, OPAQUE, 255), OPAQUE);
if (clip3d->fakeFloor->validcount != validcount)
{
clip3d->fakeFloor->validcount = validcount;
clip3d->NewClip();
}
double fakeHeight = clip3d->fakeFloor->fakeFloor->bottom.plane->ZatPoint(frontsector->centerspot);
if (fakeHeight > Thread->Viewport->viewpoint.Pos.Z &&
fakeHeight < frontsector->ceilingplane.ZatPoint(frontsector->centerspot))
{
sector_t tempsec = *clip3d->fakeFloor->fakeFloor->model;
tempsec.floorplane = *clip3d->fakeFloor->fakeFloor->top.plane;
tempsec.ceilingplane = *clip3d->fakeFloor->fakeFloor->bottom.plane;
int position;
if ((!(clip3d->fakeFloor->fakeFloor->flags & FF_THISINSIDE) && !(clip3d->fakeFloor->fakeFloor->flags & FF_INVERTSECTOR)) ||
(clip3d->fakeFloor->fakeFloor->flags & FF_THISINSIDE && clip3d->fakeFloor->fakeFloor->flags & FF_INVERTSECTOR))
{
tempsec.SetTexture(sector_t::ceiling, tempsec.GetTexture(sector_t::floor));
position = sector_t::floor;
}
else
{
position = sector_t::ceiling;
}
tempsec.ceilingplane.ChangeHeight(-1 / 65536.);
if (cameraLight->FixedLightLevel() < 0 && sub->sector->e->XFloor.lightlist.Size())
{
lightlist_t *light = P_GetPlaneLight(sub->sector, &tempsec.ceilingplane, false);
basecolormap = GetColorTable(light->extra_colormap);
ceilinglightlevel = *light->p_lightlevel;
}
tempsec.ceilingplane.ChangeHeight(1 / 65536.);
VisiblePlane *ceilingplane3d = Thread->PlaneList->FindPlane(
tempsec.ceilingplane,
tempsec.GetTexture(sector_t::ceiling),
ceilinglightlevel, foggy,
tempsec.GetAlpha(sector_t::ceiling),
!!(clip3d->fakeFloor->fakeFloor->flags & FF_ADDITIVETRANS),
tempsec.planes[position].xform,
tempsec.skytransfer,
nullptr,
basecolormap,
Fake3DOpaque::FakeCeiling,
fakeAlpha);
ceilingplane3d->AddLights(Thread, sub->section->lighthead);
FakeDrawLoop(sub, &tempsec, nullptr, ceilingplane3d, Fake3DOpaque::FakeCeiling);
}
}
clip3d->fakeFloor = nullptr;
}
}
void RenderOpaquePass::RenderScene(FLevelLocals *Level)
{
if (Thread->MainThread)
WallCycles.Clock();
for (uint32_t sub : PvsSubsectors)
SubsectorDepths[sub] = 0xffffffff;
SubsectorDepths.resize(Level->subsectors.Size(), 0xffffffff);
PvsSubsectors.clear();
SeenSpriteSectors.clear();
SeenActors.clear();
InSubsector = nullptr;
RenderBSPNode(Level->HeadNode()); // The head node is the last node output.
if (Thread->MainThread)
WallCycles.Unclock();
}
//
// RenderBSPNode
// Renders all subsectors below a given node, traversing subtree recursively.
// Just call with BSP root and -1.
// killough 5/2/98: reformatted, removed tail recursion
void RenderOpaquePass::RenderBSPNode(void *node)
{
if (Thread->Viewport->Level()->nodes.Size() == 0)
{
RenderSubsector(&Thread->Viewport->Level()->subsectors[0]);
return;
}
while (!((size_t)node & 1)) // Keep going until found a subsector
{
node_t *bsp = (node_t *)node;
// Decide which side the view point is on.
int side = R_PointOnSide(Thread->Viewport->viewpoint.Pos.XY(), bsp);
// Recursively divide front space (toward the viewer).
RenderBSPNode(bsp->children[side]);
// Possibly divide back space (away from the viewer).
side ^= 1;
if (!CheckBBox(bsp->bbox[side]))
return;
node = bsp->children[side];
}
RenderSubsector((subsector_t *)((uint8_t *)node - 1));
}
void RenderOpaquePass::ClearClip()
{
fillshort(floorclip, viewwidth, viewheight);
fillshort(ceilingclip, viewwidth, 0);
}
void RenderOpaquePass::AddSprites(sector_t *sec, int lightlevel, WaterFakeSide fakeside, bool foggy, FDynamicColormap *basecolormap)
{
// BSP is traversed by subsector.
// A sector might have been split into several
// subsectors during BSP building.
// Thus we check whether it was already added.
if (sec->touching_renderthings == nullptr || SeenSpriteSectors.find(sec) != SeenSpriteSectors.end()/*|| sec->validcount == validcount*/)
return;
// Well, now it will be done.
//sec->validcount = validcount;
SeenSpriteSectors.insert(sec);
// Handle all things in sector.
for (auto p = sec->touching_renderthings; p != nullptr; p = p->m_snext)
{
auto thing = p->m_thing;
if (SeenActors.find(thing) != SeenActors.end()) continue;
SeenActors.insert(thing);
//if (thing->validcount == validcount) continue;
//thing->validcount = validcount;
FIntCVar *cvar = thing->GetInfo()->distancecheck;
if (cvar != nullptr && *cvar >= 0)
{
double dist = (thing->Pos() - Thread->Viewport->viewpoint.Pos).LengthSquared();
double check = (double)**cvar;
if (dist >= check * check)
{
continue;
}
}
// find fake level
F3DFloor *fakeceiling = nullptr;
F3DFloor *fakefloor = nullptr;
for (auto rover : thing->Sector->e->XFloor.ffloors)
{
if (!(rover->flags & FF_EXISTS) || !(rover->flags & FF_RENDERPLANES)) continue;
if (!(rover->flags & FF_SOLID) || rover->alpha != 255) continue;
if (!fakefloor)
{
if (!rover->top.plane->isSlope())
{
if (rover->top.plane->ZatPoint(0., 0.) <= thing->Z()) fakefloor = rover;
}
}
if (!rover->bottom.plane->isSlope())
{
if (rover->bottom.plane->ZatPoint(0., 0.) >= thing->Top()) fakeceiling = rover;
}
}
if (IsPotentiallyVisible(thing))
{
ThingSprite sprite;
int spritenum = thing->sprite;
bool isPicnumOverride = thing->picnum.isValid();
FSpriteModelFrame *modelframe = isPicnumOverride ? nullptr : FindModelFrame(thing, spritenum, thing->frame, !!(thing->flags & MF_DROPPED));
if (r_modelscene && modelframe && (thing->Pos() - Thread->Viewport->viewpoint.Pos).LengthSquared() < model_distance_cull)
{
DVector3 pos = thing->InterpolatedPosition(Thread->Viewport->viewpoint.TicFrac);
RenderModel::Project(Thread, (float)pos.X, (float)pos.Y, (float)pos.Z, modelframe, thing);
}
else if (GetThingSprite(thing, sprite))
{
FDynamicColormap *thingColormap = basecolormap;
int thinglightlevel = lightlevel;
if (sec->sectornum != thing->Sector->sectornum) // compare sectornums to account for R_FakeFlat copies.
{
thinglightlevel = thing->Sector->GetTexture(sector_t::ceiling) == skyflatnum ? thing->Sector->GetCeilingLight() : thing->Sector->GetFloorLight();
auto nc = !!(thing->Level->flags3 & LEVEL3_NOCOLOREDSPRITELIGHTING);
thingColormap = GetSpriteColorTable(thing->Sector->Colormap, thing->Sector->SpecialColors[sector_t::sprites], nc);
}
if (thing->LightLevel > -1)
{
thinglightlevel = thing->LightLevel;
if (thing->flags8 & MF8_ADDLIGHTLEVEL)
{
thinglightlevel += thing->Sector->GetTexture(sector_t::ceiling) == skyflatnum ? thing->Sector->GetCeilingLight() : thing->Sector->GetFloorLight();
thinglightlevel = clamp(thinglightlevel, 0, 255);
}
}
if ((sprite.renderflags & RF_SPRITETYPEMASK) == RF_WALLSPRITE)
{
RenderWallSprite::Project(Thread, thing, sprite.pos, sprite.tex, sprite.spriteScale, sprite.renderflags, thinglightlevel, foggy, thingColormap);
}
else if (sprite.voxel)
{
RenderVoxel::Project(Thread, thing, sprite.pos, sprite.voxel, sprite.spriteScale, sprite.renderflags, fakeside, fakefloor, fakeceiling, sec, thinglightlevel, foggy, thingColormap);
}
else
{
RenderSprite::Project(Thread, thing, sprite.pos, sprite.tex, sprite.spriteScale, sprite.renderflags, fakeside, fakefloor, fakeceiling, sec, thinglightlevel, foggy, thingColormap);
// [Nash] draw sprite shadow
if (R_ShouldDrawSpriteShadow(thing))
{
double dist = (thing->Pos() - Thread->Viewport->viewpoint.Pos).LengthSquared();
double distCheck = r_actorspriteshadowdist;
if (dist <= distCheck * distCheck)
{
// squash Y scale
DVector2 shadowScale = sprite.spriteScale;
shadowScale.Y *= 0.15;
// snap to floor Z
DVector3 shadowPos = sprite.pos;
shadowPos.Z = thing->floorz;
RenderSprite::Project(Thread, thing, shadowPos, sprite.tex, shadowScale, sprite.renderflags, fakeside, fakefloor, fakeceiling, sec, thinglightlevel, foggy, thingColormap, true);
}
}
}
}
}
}
}
bool RenderOpaquePass::IsPotentiallyVisible(AActor *thing)
{
// Don't waste time projecting sprites that are definitely not visible.
if (thing == nullptr ||
(thing->renderflags & RF_INVISIBLE) ||
(thing->renderflags & RF_MAYBEINVISIBLE) ||
!thing->RenderStyle.IsVisible(thing->Alpha) ||
!thing->IsVisibleToPlayer() ||
!thing->IsInsideVisibleAngles())
{
return false;
}
if ((thing->flags8 & MF8_MASTERNOSEE) && thing->master != nullptr)
{
// Make MASTERNOSEE actors invisible if their master
// is invisible due to viewpoint shenanigans.
if (thing->master->renderflags & RF_MAYBEINVISIBLE)
{
return false;
}
}
// check renderrequired vs ~r_rendercaps, if anything matches we don't support that feature,
// check renderhidden vs r_rendercaps, if anything matches we do support that feature and should hide it.
if ((!r_debug_disable_vis_filter && !!(thing->RenderRequired & ~r_renderercaps)) ||
(!!(thing->RenderHidden & r_renderercaps)))
return false;
// [ZZ] Or less definitely not visible (hue)
// [ZZ] 10.01.2016: don't try to clip stuff inside a skybox against the current portal.
RenderPortal *renderportal = Thread->Portal.get();
if (!renderportal->CurrentPortalInSkybox && renderportal->CurrentPortal && !!P_PointOnLineSidePrecise(thing->Pos(), renderportal->CurrentPortal->dst))
return false;
// [Nash] filter visibility in mirrors
bool isInMirror = renderportal != nullptr && renderportal->IsInMirrorRecursively;
if (thing->renderflags2 & RF2_INVISIBLEINMIRRORS && isInMirror)
{
return false;
}
else if (thing->renderflags2 & RF2_ONLYVISIBLEINMIRRORS && !isInMirror)
{
return false;
}
double distanceSquared = (thing->Pos() - Thread->Viewport->viewpoint.Pos).LengthSquared();
if (distanceSquared > sprite_distance_cull)
return false;
return true;
}
bool RenderOpaquePass::GetThingSprite(AActor *thing, ThingSprite &sprite)
{
// The X offsetting (SpriteOffset.X) is performed in r_sprite.cpp, in RenderSprite::Project().
sprite.pos = thing->InterpolatedPosition(Thread->Viewport->viewpoint.TicFrac);
sprite.pos += thing->WorldOffset;
sprite.pos.Z += thing->GetBobOffset(Thread->Viewport->viewpoint.TicFrac) + thing->GetSpriteOffset(true);
sprite.spritenum = thing->sprite;
sprite.tex = nullptr;
sprite.voxel = nullptr;
sprite.spriteScale = DVector2(thing->Scale.X, thing->Scale.Y);
sprite.renderflags = thing->renderflags;
if (thing->player != nullptr)
{
P_CheckPlayerSprite(thing, sprite.spritenum, sprite.spriteScale);
}
if (thing->picnum.isValid())
{
sprite.picnum = thing->picnum;
sprite.tex = GetPalettedSWTexture(sprite.picnum, true);
if (!sprite.tex) return false;
if (sprite.tex->GetRotations() != 0xFFFF)
{
// choose a different rotation based on player view
spriteframe_t *sprframe = &SpriteFrames[sprite.tex->GetRotations()];
DAngle ang = (sprite.pos - Thread->Viewport->viewpoint.Pos).Angle();
angle_t rot;
if (sprframe->Texture[0] == sprframe->Texture[1])
{
if (thing->flags7 & MF7_SPRITEANGLE)
rot = (thing->SpriteAngle + DAngle::fromDeg(45.0 / 2 * 9)).BAMs() >> 28;
else
rot = (ang - (thing->Angles.Yaw + thing->SpriteRotation) + DAngle::fromDeg(45.0 / 2 * 9)).BAMs() >> 28;
}
else
{
if (thing->flags7 & MF7_SPRITEANGLE)
rot = (thing->SpriteAngle + DAngle::fromDeg(45.0 / 2 * 9 - 180.0 / 16)).BAMs() >> 28;
else
rot = (ang - (thing->Angles.Yaw + thing->SpriteRotation) + DAngle::fromDeg(45.0 / 2 * 9 - 180.0 / 16)).BAMs() >> 28;
}
sprite.picnum = sprframe->Texture[rot];
if (sprframe->Flip & (1 << rot))
{
sprite.renderflags ^= RF_XFLIP;
}
sprite.tex = GetPalettedSWTexture(sprite.picnum, false); // Do not animate the rotation
if (!sprite.tex) return false;
}
}
else
{
// decide which texture to use for the sprite
if ((unsigned)sprite.spritenum >= sprites.Size())
{
DPrintf(DMSG_ERROR, "R_ProjectSprite: invalid sprite number %u\n", sprite.spritenum);
return false;
}
spritedef_t *sprdef = &sprites[sprite.spritenum];
if (thing->frame >= sprdef->numframes)
{
// If there are no frames at all for this sprite, don't draw it.
return false;
}
else
{
auto &viewpoint = Thread->Viewport->viewpoint;
DAngle sprangle = thing->GetSpriteAngle((sprite.pos - viewpoint.Pos).Angle(), viewpoint.TicFrac);
bool flipX;
FTextureID tex = sprdef->GetSpriteFrame(thing->frame, -1, sprangle, &flipX, !!(thing->renderflags & RF_SPRITEFLIP));
if (tex.isValid())
{
if (flipX)
{
sprite.renderflags ^= RF_XFLIP;
}
sprite.tex = GetPalettedSWTexture(tex, false); // Do not animate the rotation
}
if (r_drawvoxels)
{
sprite.voxel = SpriteFrames[sprdef->spriteframes + thing->frame].Voxel;
}
if (sprite.voxel == nullptr && !tex.isValid())
return false;
}
if (sprite.voxel == nullptr && sprite.tex == nullptr)
{
return false;
}
if (sprite.spriteScale.Y < 0)
{
sprite.spriteScale.Y = -sprite.spriteScale.Y;
sprite.renderflags ^= RF_YFLIP;
}
if (sprite.spriteScale.X < 0)
{
sprite.spriteScale.X = -sprite.spriteScale.X;
sprite.renderflags ^= RF_XFLIP;
}
}
return true;
}
}